Portable speaker system



FIG. 1 is a perspective view of a portable speaker system incorporatingour new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken lines in the drawings are for illustrative purposes only andform no part of the claimed design.

The ornamental design for a portable speaker system, as shown anddescribed.